Drill bit



FIG. 1 is a perspective view of a first embodiment of the present new design of a drill bit;

FIG. 2 is a right side elevational view of the first embodiment, the left side and bottom views being identical;

FIG. 3 is a top view thereof;

FIG. 4 is a front end view thereof;

FIG. 5 is a rear end view thereof;

FIG. 6 is a perspective view of a second embodiment of the new design;

FIG. 7 is a right side elevational view of the second embodiment, the left side and bottom views being identical;

FIG. 8 is a top view thereof;

FIG. 9 is a front end view thereof; and,

FIG. 10 is a rear end view thereof.

The broken lines in FIGS. 6-10 showing the flute portion of the drill bit form no part of the claimed design for the second embodiment. 

The ornamental design for a drill bit, as shown and described. 